eases/download/${DISTVERSION}/ \
 		https://downloads.es.net/pub/${PORTNAME}/
diff --git a/benchmarks/iperf3/distinfo b/benchmarks/iperf3/distinfo
index fb0175c8caca..63aabafb9546 100644
--- a/benchmarks/iperf3/distinfo
+++ b/benchmarks/iperf3/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1763163198
-SHA256 (iperf-3.20.tar.gz) = 3acc572d1ecca4e0b20359c7bf0132ddc80d982efeee20c86f6726a9a6094388
-SIZE (iperf-3.20.tar.gz) = 698649
+TIMESTAMP = 1776039890
+SHA256 (iperf-3.21.tar.gz) = 656e4405ebd620121de7ceca3eaf43a88f79ea1b857d041a6a0b1314801acdd8
+SIZE (iperf-3.21.tar.gz) = 708031
diff --git a/benchmarks/iperf3/files/patch-RELNOTES.md b/benchmarks/iperf3/files/patch-RELNOTES.md
deleted file mode 100644
index cb9a7c97d6ba..000000000000
--- a/benchmarks/iperf3/files/patch-RELNOTES.md
+++ /dev/null
@@ -1,18 +0,0 @@
-diff --git a/RELNOTES.md b/RELNOTES.md
-index cf5bd19..5bb89a5 100644
---- RELNOTES.md.orig
-+++ RELNOTES.md
-@@ -30,10 +30,10 @@ releases, including iperf-3.19.1.
-       flag (PR #1903)
- 
-     * Sends with `--zerocopy` are now properly seeded with data
--      instead of being all-zeroes. (PR #1909)
-+      instead of being all-zeroes. (PR #1949)
- 
--    * The `--time` flag is now allowed on the iperf3 server to impose
--      a maximum duration on timed tests. (PR #1684, PR #1931)
-+    * The `--server-max-duration` flag is now allowed on the iperf3 server to impose
-+      a maximum duration on timed tests. (PR #1684)
- 
-     * The `--rcv-timeout` flag is now ignored for `--bidir`
-       tests. This change prevents premature termination of